9 |
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*/ |
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|
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#include "rholo.h" |
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#include "random.h" |
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#include "paths.h" |
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#include <signal.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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|
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/* the following must be consistent with rholo.h */ |
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int NVARS = NRHVARS; /* total number of variables */ |
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|
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int nowarn = 0; /* turn warnings off? */ |
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|
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double expval = 1.; /* global exposure value */ |
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|
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int ncprocs = 0; /* desired number of compute processes */ |
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|
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char *outdev = NULL; /* output device name */ |
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int rtargc = 1; /* rtrace command */ |
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char *rtargv[128] = {"rtrace", NULL}; |
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|
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int orig_mode = -1; /* original file mode (-1 if unchanged) */ |
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|
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long nraysdone = 0L; /* number of rays done */ |
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long npacksdone = 0L; /* number of packets done */ |
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|
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PACKET *freepacks; /* available packets */ |
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|
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char *sigerr[NSIG]; /* signal error messages */ |
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|
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extern time_t time(); |
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|
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|
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int force = 0; |
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/* mark start time */ |
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starttime = time(NULL); |
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initurand(10240); /* initialize urand */ |
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progname = argv[0]; /* get arguments */ |
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for (i = 1; i < argc && argv[i][0] == '-'; i++) |
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switch (argv[i][1]) { |
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creatholo(&hdg); |
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} else { /* else load holodeck */ |
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loadholo(); |
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if (vdef(RIF)) /* load RIF if any */ |
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/* check settings */ |
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> |
checkvalues(); |
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/* load RIF if any */ |
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if (vdef(RIF)) |
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getradfile(vval(RIF)); |
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/* set defaults */ |
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setdefaults(NULL); |
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} |
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/* initialize */ |
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initrholo(); |
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/* run */ |
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/* main loop */ |
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while (rholo()) |
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; |
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/* done */ |
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} |
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|
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|
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onsig(signo) /* fatal signal */ |
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int signo; |
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{ |
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static int gotsig = 0; |
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|
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if (gotsig++) /* two signals and we're gone! */ |
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_exit(signo); |
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|
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alarm(30); /* allow 30 seconds to clean up */ |
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signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
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eputs("signal - "); |
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eputs(sigerr[signo]); |
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eputs("\n"); |
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quit(3); |
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} |
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|
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|
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sigdie(signo, msg) /* set fatal signal */ |
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int signo; |
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char *msg; |
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{ |
160 |
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if (signal(signo, onsig) == SIG_IGN) |
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signal(signo, SIG_IGN); |
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sigerr[signo] = msg; |
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} |
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|
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|
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int |
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resfmode(fd, mod) /* restrict open file access mode */ |
168 |
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int fd, mod; |
169 |
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{ |
170 |
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struct stat stbuf; |
171 |
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/* get original mode */ |
172 |
+ |
if (fstat(fd, &stbuf) < 0) |
173 |
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error(SYSTEM, "cannot stat open holodeck file"); |
174 |
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mod &= stbuf.st_mode; /* always more restrictive */ |
175 |
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if (mod == stbuf.st_mode) |
176 |
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return(-1); /* already set */ |
177 |
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/* else change it */ |
178 |
+ |
if (fchmod(fd, mod) < 0) { |
179 |
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error(WARNING, "cannot change holodeck file access mode"); |
180 |
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return(-1); |
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} |
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return(stbuf.st_mode); /* return original mode */ |
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+ |
} |
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|
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|
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initrholo() /* get our holodeck running */ |
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{ |
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extern int global_packet(); |
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freepacks[i].next = &freepacks[i+1]; |
243 |
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} |
244 |
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} |
245 |
+ |
/* set up signal handling */ |
246 |
+ |
sigdie(SIGINT, "Interrupt"); |
247 |
+ |
sigdie(SIGHUP, "Hangup"); |
248 |
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sigdie(SIGTERM, "Terminate"); |
249 |
+ |
sigdie(SIGPIPE, "Broken pipe"); |
250 |
+ |
sigdie(SIGALRM, "Alarm clock"); |
251 |
+ |
#ifdef SIGXCPU |
252 |
+ |
sigdie(SIGXCPU, "CPU limit exceeded"); |
253 |
+ |
sigdie(SIGXFSZ, "File size exceeded"); |
254 |
+ |
#endif |
255 |
+ |
/* protect holodeck file */ |
256 |
+ |
orig_mode = resfmode(hdlist[0]->fd, ncprocs>0 ? 0 : 0444); |
257 |
|
return; |
258 |
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memerr: |
259 |
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error(SYSTEM, "out of memory in initrholo"); |
338 |
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sprintf(errmsg, "ignoring all but first %s", vnam(SECTION)); |
339 |
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error(WARNING, errmsg); |
340 |
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} |
341 |
+ |
if (!vdef(OCTREE)) { |
342 |
+ |
if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL) |
343 |
+ |
error(SYSTEM, "out of memory"); |
344 |
+ |
sprintf(vval(OCTREE), "%s.oct", froot); |
345 |
+ |
vdef(OCTREE)++; |
346 |
+ |
} |
347 |
+ |
if (!vdef(OBSTRUCTIONS)) { |
348 |
+ |
vval(OBSTRUCTIONS) = "T"; |
349 |
+ |
vdef(OBSTRUCTIONS)++; |
350 |
+ |
} |
351 |
+ |
if (!vdef(VDIST)) { |
352 |
+ |
vval(VDIST) = "F"; |
353 |
+ |
vdef(VDIST)++; |
354 |
+ |
} |
355 |
+ |
if (!vdef(OCCUPANCY)) { |
356 |
+ |
vval(OCCUPANCY) = "U"; |
357 |
+ |
vdef(OCCUPANCY)++; |
358 |
+ |
} |
359 |
+ |
/* append rendering options */ |
360 |
+ |
if (vdef(RENDER)) |
361 |
+ |
rtargc += wordstring(rtargv+rtargc, vval(RENDER)); |
362 |
+ |
|
363 |
+ |
if (gp == NULL) /* already initialized? */ |
364 |
+ |
return; |
365 |
+ |
/* set grid parameters */ |
366 |
|
if (sscanf(vval(SECTION), |
367 |
|
"%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf", |
368 |
|
&gp->orig[0], &gp->orig[1], &gp->orig[2], |
383 |
|
badvalue(GRID); |
384 |
|
for (i = 0; i < 3; i++) |
385 |
|
gp->grid[i] = len[i]/d + (1.-FTINY); |
291 |
– |
if (!vdef(EXPOSURE)) { |
292 |
– |
sprintf(errmsg, "%s must be defined", vnam(EXPOSURE)); |
293 |
– |
error(USER, errmsg); |
294 |
– |
} |
295 |
– |
expval = vval(EXPOSURE)[0] == '-' || vval(EXPOSURE)[0] == '+' ? |
296 |
– |
pow(2., vflt(EXPOSURE)) : vflt(EXPOSURE); |
297 |
– |
if (!vdef(OCTREE)) { |
298 |
– |
if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL) |
299 |
– |
error(SYSTEM, "out of memory"); |
300 |
– |
sprintf(vval(OCTREE), "%s.oct", froot); |
301 |
– |
vdef(OCTREE)++; |
302 |
– |
} |
303 |
– |
if (!vdef(OBSTRUCTIONS)) { |
304 |
– |
vval(OBSTRUCTIONS) = "T"; |
305 |
– |
vdef(OBSTRUCTIONS)++; |
306 |
– |
} |
307 |
– |
if (!vdef(OCCUPANCY)) { |
308 |
– |
vval(OCCUPANCY) = "U"; |
309 |
– |
vdef(OCCUPANCY)++; |
310 |
– |
} |
311 |
– |
/* append rendering options */ |
312 |
– |
if (vdef(RENDER)) |
313 |
– |
rtargc += wordstring(rtargv+rtargc, vval(RENDER)); |
386 |
|
} |
387 |
|
|
388 |
|
|
389 |
|
creatholo(gp) /* create a holodeck output file */ |
390 |
|
HDGRID *gp; |
391 |
|
{ |
392 |
+ |
extern char VersionID[]; |
393 |
|
long endloc = 0; |
394 |
|
int fd; |
395 |
|
FILE *fp; |
400 |
|
} |
401 |
|
/* write information header */ |
402 |
|
newheader("RADIANCE", fp); |
403 |
+ |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
404 |
|
printvars(fp); |
405 |
|
fputformat(HOLOFMT, fp); |
406 |
|
fputc('\n', fp); |
470 |
|
done_packets(pl) /* handle finished packets */ |
471 |
|
PACKET *pl; |
472 |
|
{ |
473 |
< |
static int nunflushed = 0; |
473 |
> |
static int n2flush = 0; |
474 |
|
register PACKET *p; |
475 |
|
|
476 |
|
while (pl != NULL) { |
481 |
|
p->nr*sizeof(RAYVAL)); |
482 |
|
if (outdev != NULL) /* display it */ |
483 |
|
disp_packet((PACKHEAD *)p); |
484 |
< |
else |
485 |
< |
nunflushed += p->nr; |
484 |
> |
if (hdcachesize <= 0) /* manual flushing */ |
485 |
> |
n2flush += p->nr; |
486 |
|
nraysdone += p->nr; |
487 |
|
npacksdone++; |
488 |
|
} |
490 |
|
p->next = freepacks; |
491 |
|
freepacks = p; |
492 |
|
} |
493 |
< |
if (nunflushed >= 256*RPACKSIZ) { |
493 |
> |
if (n2flush > 512*RPACKSIZ*ncprocs) { |
494 |
|
hdflush(NULL); /* flush holodeck buffers */ |
495 |
< |
nunflushed = 0; |
495 |
> |
n2flush = 0; |
496 |
|
} |
497 |
|
} |
498 |
|
|
500 |
|
getradfile(rfargs) /* run rad and get needed variables */ |
501 |
|
char *rfargs; |
502 |
|
{ |
503 |
< |
static short mvar[] = {OCTREE,EXPOSURE,-1}; |
503 |
> |
static short mvar[] = {OCTREE,-1}; |
504 |
|
static char tf1[] = TEMPLATE; |
505 |
|
char tf2[64]; |
506 |
|
char combuf[256]; |
599 |
|
{ |
600 |
|
int status = 0; |
601 |
|
|
528 |
– |
if (outdev != NULL) /* close display */ |
529 |
– |
disp_close(); |
602 |
|
if (hdlist[0] != NULL) { /* flush holodeck */ |
603 |
|
if (ncprocs > 0) { |
604 |
|
done_packets(flush_queue()); |
617 |
|
} else |
618 |
|
hdflush(NULL); |
619 |
|
} |
620 |
+ |
if (orig_mode >= 0) /* reset holodeck access mode */ |
621 |
+ |
fchmod(hdlist[0]->fd, orig_mode); |
622 |
+ |
if (outdev != NULL) /* close display */ |
623 |
+ |
disp_close(); |
624 |
|
exit(ec ? ec : status); /* exit */ |
625 |
|
} |